Paper packaging plate and packaging box for long-term storage of articles under complex environmental conditions

Abstract

The utility model discloses a paper packaging plate, particularly discloses a paper packaging plate and a packaging box which are used for storing articles for a long time under complex environmental conditions, and belongs to the technical field of design and manufacturing of paper packaging pieces of products. According to the paper packaging plate and the packaging box, the service life can be effectively prolonged, and packaged products can be well protected. The paper packaging plate and the packaging box are used for storing the articles for a long time under the complex environmental conditions. The paper packaging plate comprises a composite breathable framework plate, and a protective structure layer matched with the environment atmosphere in long-term contact is attached to the surface of the composite breathable framework plate. In the using process, the paper packaging plate forms a packaging box with the corresponding strength through the composite breathable framework plate, and the packaging box isolates water vapor and is mildew-proof and damp-proof through the protective structure layer. The packaging box is made of the paper packaging plate, the humidifying mildew-proof layer is located on the inner side wall of the packaging box, and the hydrophobic flame-retardant layer is located on the outer side wall of the packaging box.

Description

Technical Field

[0001] This utility model relates to a paper packaging board, and more particularly to a paper packaging board for long-term storage of goods under complex environmental conditions, belonging to the field of product paper packaging design and manufacturing technology. This utility model also relates to a packaging box made using the aforementioned paper packaging board for long-term storage of goods under complex environmental conditions. Background Technology

[0002] As a commonly used material, cardboard has seen its functions and applications become increasingly diverse with the rapid development of various industries and the ever-changing lifestyles of people, leading to a surge in market demand. However, traditional cardboard materials are struggling to meet the packaging requirements of diverse environments. Specifically, traditional cardboard materials are frequently affected by multiple factors, including the environment and the materials themselves. For instance, as cardboard is flammable, it is highly flammable in dry environments or when used to package flammable items; in humid environments or during long-term storage, it is prone to moisture absorption and mold growth. This not only significantly reduces the strength of the cardboard itself but also poses a series of safety hazards, thus greatly limiting the use of traditional cardboard materials. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a paper packaging board for long-term storage of items under complex environmental conditions, which can effectively extend the service life and provide better protection for the packaged products, and a packaging box made of the paper packaging board for long-term storage of items under complex environmental conditions.

[0004] The technical solution adopted to solve the above-mentioned technical problems is: a paper packaging board for long-term storage of goods under complex environmental conditions, wherein the paper packaging board includes a composite breathable skeleton board, and a protective structural layer adapted to the environmental atmosphere of long-term contact is attached to the surface of the composite breathable skeleton board; during use, the paper packaging board, through the composite breathable skeleton board, forms a packaging box with corresponding strength, and the packaging box is isolated from moisture and prevents mold and dampness through the protective structural layer.

[0005] The protective structural layer includes a hydrophobic and flame-retardant layer and a moisture-regulating and mildew-proof layer. The moisture-regulating and mildew-proof layer is attached to the outer side of the gray cardboard of the composite breathable skeleton board, and the hydrophobic and flame-retardant layer is attached to the outer side of the white cardboard of the composite breathable skeleton board.

[0006] Furthermore, the composite breathable skeleton board includes at least a breathable skeleton paperboard and a structural isolation paperboard, with the structural isolation paperboard laminated on the breathable skeleton paperboard. A protective structural layer adapted to the corresponding environmental atmosphere is attached to the outer surfaces of both the structural isolation paperboard and the breathable skeleton paperboard.

[0007] The preferred embodiment of the above scheme is that the breathable skeleton paperboard is made of gray paperboard with micropores evenly distributed thereon, and the structural isolation paperboard is made of white paperboard.

[0008] Furthermore, the hydrophobic flame retardant layer and the structural isolation cardboard, as well as the moisture-regulating and mildew-proof layer and the breathable skeleton cardboard, are all connected by a spray-coated structure.

[0009] Furthermore, the breathable skeleton paperboard and the structural isolation paperboard are connected by an adhesive composite structure.

[0010] A packaging box is made of paper packaging board for long-term storage of items under complex environmental conditions, wherein a moisture-regulating and mildew-proof layer is located on the inner wall of the packaging box and a hydrophobic and flame-retardant layer is located on the outer wall of the packaging box.

[0011] The beneficial effects of this utility model are as follows: The technical solution provided in this application designs a paper packaging board including a composite breathable skeleton board, and then attaches a protective structural layer adapted to the long-term contact environment atmosphere to the surface of the composite breathable skeleton board; during use, the paper packaging board forms a packaging box with corresponding strength through the composite breathable skeleton board, and then the packaging box is isolated from moisture and prevents mold and dampness through the protective structural layer. In this way, because the composite breathable skeleton board constituting the paper packaging board is attached with a protective structural layer adapted to the long-term contact environment atmosphere, it can effectively prevent the composite breathable skeleton board from softening and deforming due to moisture and losing its packaging protection function, thereby extending the service life of the paper packaging board; at the same time, because the protective structural layer can also isolate moisture and prevent mold and dampness, it can also ensure good protection for the packaged product. Attached Figure Description

[0012] Figure 1 This is a cross-sectional view of the paper packaging board of this utility model for long-term storage of goods under complex environmental conditions;

[0013] Figure 2 for Figure 1 Exploded view of the cross-section.

[0014] The following are labeled in the diagram: 1. Breathable skeleton cardboard; 2. Structural isolation cardboard; 3. Hydrophobic flame retardant layer; 4. Moisture-regulating and mildew-proof layer. Detailed Implementation

[0015] like Figure 1 , Figure 2This invention provides a paper packaging board for long-term storage of items in complex environments, offering an extended service life and better protection for packaged products. It also includes a packaging box using this paper packaging board. The paper packaging board comprises a composite breathable skeleton board, with a protective structural layer adapted to the long-term contact environment attached to its surface. During use, the paper packaging board, through the composite breathable skeleton board, forms a packaging box with appropriate strength. The packaging box, through the protective structural layer, isolates moisture and prevents mold and dampness. The technical solution provided in this application designs a paper packaging board including a composite breathable skeleton board, then attaches a protective structural layer adapted to the long-term contact environment to its surface; and during use, the paper packaging board, through the composite breathable skeleton board, forms a packaging box with appropriate strength, and the packaging box, through the protective structural layer, isolates moisture and prevents mold and dampness. In this way, because the composite breathable skeleton board that makes up the paper packaging board has a protective structural layer that is adapted to the long-term contact environment, it can effectively prevent the composite breathable skeleton board from deforming and losing its packaging protection function due to moisture and softening, thereby extending the service life of the paper packaging board. At the same time, because this protective structural layer can also isolate moisture and prevent mold and moisture, it can also ensure good protection for the packaged products.

[0016] Accordingly, considering the existing technology, the composite breathable skeleton board of this application includes at least a breathable skeleton paperboard 1 and a structural isolation paperboard 2. The structural isolation paperboard 2 is laminated onto the breathable skeleton paperboard 1, and a protective structural layer adapted to the corresponding environmental atmosphere is attached to the outer surfaces of both the structural isolation paperboard 2 and the breathable skeleton paperboard 1. More specifically, the breathable skeleton paperboard 1 is composed of gray paperboard with micropores evenly distributed thereon, and the structural isolation paperboard 2 is composed of white paperboard.

[0017] As another structural improvement in this application, based on existing materials, to maximize the protective effect, the protective structural layer of this application includes a hydrophobic flame-retardant layer 3 and a moisture-regulating and mildew-resistant layer 4. The moisture-regulating and mildew-resistant layer 4 is attached to the outer surface of the gray cardboard of the composite breathable skeleton board, and the hydrophobic flame-retardant layer 3 is attached to the outer surface of the white cardboard of the composite breathable skeleton board. Preferably, the moisture-regulating and mildew-resistant layer 4 is composed of a bentonite-chitosan layer loaded with a benzimidazole-based mildew inhibitor. The hydrophobic flame-retardant layer 3 is composed of a modified epoxy resin layer with added phosphorus and nitrogen-based flame-retardant compounds.

[0018] Furthermore, considering existing composite technologies for cardboard, and for ease of manufacturing, the hydrophobic and flame-retardant layer 3 and the structural isolation cardboard 2, as well as the moisture-regulating and mildew-proof layer 4 and the breathable skeleton cardboard 1, are connected by a spray coating structure. The breathable skeleton cardboard 1 and the structural isolation cardboard 2 are connected by an adhesive composite structure.

[0019] Based on the structural characteristics of the paper packaging board itself, the packaging box made by the paper packaging board used for long-term storage of items under complex environmental conditions in this application is of course made by the paper packaging board. However, during the manufacturing process, it is necessary to arrange the moisture-regulating and mildew-proof layer 4 on the inner side wall of the packaging box and the hydrophobic and flame-retardant layer 3 on the outer side wall of the packaging box.

[0020] In summary, compared with the prior art, the paper packaging board and the packaging box made from the paper packaging board provided in this application have the following advantages:

[0021] 1) This application applies a coating with flame-retardant material to the outside of the composite paperboard, which can reduce the risk of fire to a certain extent;

[0022] 2) The humidity-regulating and mildew-proof coating of this application uses bentonite-chitosan loaded with benzimidazole mildew inhibitors. The porous structure of bentonite provides a good loading carrier for benzimidazole mildew inhibitors, while chitosan further enhances the adsorption and film-forming properties of the overall coating. The three work together to enable the humidity-regulating and mildew-proof coating to have long-lasting mildew-proof and humidity-regulating functions.

[0023] 3) This application, on the one hand, reduces the surface energy of the outer surface of the composite paperboard, making the paperboard hydrophobic and effectively reducing the adsorption of moisture from the outside, thus resisting moisture erosion. On the other hand, by coating the inner side of the composite paperboard with a moisture-absorbing and mildew-resistant coating, the paperboard is given good adsorption and slow-release properties, which can continuously keep the inside dry while playing a role in preventing mildew. The combination of these two ensures that the inner packaging is in a low-humidity and sterile state for a long time, which can effectively solve the problem of traditional paperboard being prone to moisture and mildew, and optimize the stability and safety of paperboard in humid environments;

[0024] 4) By setting a microporous structure on the gray cardboard, this application can significantly improve the air permeability without affecting the overall strength of the cardboard, allowing the moisture inside the cardboard to dissipate quickly and avoiding mold and strength reduction caused by moisture accumulation.

[0025] The functional humidity-regulating and mildew-proof cardboard of this application can be widely used in the packaging of products that are sensitive to humidity and mildew, such as food, electronics, and cultural relics. It has broad market prospects and application value, and is expected to drive the packaging materials industry towards higher performance and multi-functionality, providing strong technical support for improving product packaging quality and extending product shelf life.

[0026] The technical solution of this application will be further described below through specific embodiments:

[0027] The purpose of this invention is to provide a functional moisture-regulating and mildew-proof composite paperboard that has the advantages of flame retardancy, hydrophobicity, moisture absorption, mildew prevention and breathability, so as to broaden the application range of paperboard and extend its storage time.

[0028] To achieve the above objectives, this utility model provides the following technical solution: a moisture-regulating and mildew-resistant composite paperboard for packaging, comprising a white paperboard and a gray paperboard. The outer side of the white paperboard is coated with a hydrophobic and flame-retardant layer, and the inner side of the gray paperboard is coated with a moisture-regulating and mildew-resistant layer. Simultaneously, a microporous structure is formed on the gray paperboard. The microporous structure of the gray paperboard enhances the air permeability of the paperboard, promoting the dissipation of excess moisture inside the paperboard and ensuring good ventilation.

[0029] The hydrophobic and heat-resistant coating is an epoxy resin containing phosphorus and nitrogen-based flame-retardant compounds. By modifying the epoxy resin and adding flame-retardant compounds, its surface energy is reduced, giving the paperboard hydrophobic properties and flame-retardant effects.

[0030] The moisture-regulating and mildew-resistant coating is a bentonite-chitosan mixture loaded with a benzimidazole-based mildew inhibitor. By applying the bentonite-loaded mildew inhibitor solution, a low-humidity and sterile inner packaging environment is created for an extended period.

[0031] Example 1

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model;

[0033] Please see Figure 1 In this utility model, a moisture-regulating and mildew-proof composite paperboard for packaging includes a white paperboard, the front of which is coated with a hydrophobic and flame-retardant layer, and a gray paperboard is adhered to the back, the back of which is coated with a moisture-regulating and mildew-proof layer.

[0034] In this invention, by coating a hydrophobic and flame-retardant layer and a moisture-regulating and mildew-proof layer, the composite paperboard acquires functions such as mildew prevention, moisture regulation, flame retardancy, and waterproofing. It is highly functional, applicable to the packaging field, and meets the functional requirements of packaging.

[0035] Please see Figure 2 Microporous structures are created on grey cardboard using laser drilling technology or precision needle punching, forming a uniform and effective microporous network to achieve good air permeability.

[0036] Please see Figure 1 The hydrophobic flame retardant layer is composed of modified epoxy resin with added phosphorus and nitrogen flame retardant compounds.

[0037] Please see Figure 1 The moisture-regulating and mildew-proof layer is composed of bentonite-chitosan loaded with benzimidazole mildew inhibitors.

[0038] Working Principle: The paperboard is coated with a hydrophobic and flame-retardant layer and a moisture-regulating and mildew-resistant layer, giving it waterproof, moisture-regulating, and mildew-resistant capabilities. The microporous network on the grey paperboard provides rapid heat dissipation and ventilation. These two elements work together to create a long-term environment within the packaging where mold growth is difficult, achieving mildew prevention and long-term storage. The hydrophobic and flame-retardant coating also provides flame retardancy, enabling the paperboard to become multifunctional, increasing stability and safety, and making it suitable for packaging needs in various environments.

[0039] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A paper packaging board for long-term storage of goods under complex environmental conditions, characterized in that: The paper packaging board includes a composite breathable skeleton board, on the surface of which is a protective structural layer adapted to the environmental atmosphere of long-term contact. During use, the paper packaging board, through the composite breathable skeleton board, forms a packaging box with appropriate strength. The packaging box, through the protective structural layer, isolates moisture and provides mildew and moisture protection. The protective structural layer includes a hydrophobic flame retardant layer (3) and a moisture-regulating and mildew-proof layer (4). The moisture-regulating and mildew-proof layer (4) is attached to the outer side of the gray cardboard of the composite breathable skeleton board, and the hydrophobic flame retardant layer (3) is attached to the outer side of the white cardboard of the composite breathable skeleton board.

2. The paper packaging board for long-term storage of goods under complex environmental conditions according to claim 1, characterized in that: The composite breathable skeleton board includes at least a breathable skeleton paperboard (1) and a structural isolation paperboard (2). The structural isolation paperboard (2) is laminated on the breathable skeleton paperboard (1). A protective structural layer adapted to the corresponding environmental atmosphere is attached to the outer surfaces of both the structural isolation paperboard (2) and the breathable skeleton paperboard (1).

3. The paper packaging board for long-term storage of goods under complex environmental conditions according to claim 2, characterized in that: The breathable skeleton paperboard (1) is made of gray paperboard with micropores evenly distributed on it, and the structural isolation paperboard (2) is made of white paperboard.

4. The paper packaging board for long-term storage of goods under complex environmental conditions according to claim 2 or 3, characterized in that: The hydrophobic flame retardant layer (3) and the structural isolation cardboard (2), as well as the moisture-regulating and mildew-proof layer (4) and the breathable skeleton cardboard (1), are all connected by spray coating.

5. The paper packaging board for long-term storage of goods under complex environmental conditions according to claim 2, characterized in that: The breathable skeleton paperboard (1) and the structural isolation paperboard (2) are connected by an adhesive composite structure.

6. A packaging box, characterized in that: The packaging box is made of the paper packaging board for long-term storage of items under complex environmental conditions as described in claim 4. The moisture-regulating and mildew-proof layer (4) is located on the inner side wall of the packaging box, and the hydrophobic and flame-retardant layer (3) is located on the outer side wall of the packaging box.

Images